package cn.itcast.demo;

public class OperationDemo2 {
    public static void main(String[] args){
        int a=10;
        char ch='a';
        System.out.println(a + ch);

        System.out.println("hello" + "world");
        System.out.println("hello" + 10);
        System.out.println("hello" + 10 + 20);
        System.out.println(10 + 20 + "hello");


    }
}
